Hormonal/Women

DIM

Cruciferous vegetable compound that shifts estrogen metabolism and may support cervical and prostate cell health in hormone-sensitive adults.

DIM

Cruciferous vegetable compound that shifts estrogen metabolism and may support cervical and prostate cell health in hormone-sensitive adults.

score

evidence

Caution

risk

Proven Benefits

01Modulates estrogen metabolism

02May support cervical health

03May lower PSA in men

04May reduce thyroid nodules

05May improve hormonal acne

Chemical Forms

Recommended

DIM-phosphatidylcholine complex (e.g., BioResponse DIM)
Standardized DIM capsules

Avoid

Indole-3-carbinol (I3C) — less stable and less predictable metabolism
Unstandardized cruciferous extracts with unknown DIM yield

Expert Note

Free DIM is poorly absorbed. Complexing DIM with phosphatidylcholine markedly improves bioavailability over plain powder. Standardized capsules ensure a known quantity of active compound, whereas I3C is a precursor with variable conversion and potential for other metabolites.

Protocol

Amount

100-300 mg

Frequency

Once daily

When

With a meal containing fat to improve absorption.

Condition-Based Dosing

General estrogen metabolism support

100-200 mg daily— Start low and assess tolerance.

Cervical dysplasia or hormone-sensitive tissue support (medical supervision)

200-300 mg daily— Use only under physician guidance; requires monitoring.

Body weight >90 kg

Up to 300 mg daily— Higher body mass may require the upper end of the standard range.

Safety & Limits

Upper Safe Limit

No official UL established; doses above 600 mg/day have not been well studied long-term and may cause headaches or GI distress.

Cycling

Safe for continuous use

Contraindications

Pregnancy or breastfeeding — insufficient safety data

Hormone-sensitive cancers (breast, ovarian, uterine) — use only under oncologist supervision

Hypothyroidism or Hashimoto's without monitoring — may alter thyroid hormone requirements

Oral contraceptives — may theoretically reduce efficacy

Synergies

Calcium D-Glucarate

Calcium D-Glucarate supports glucuronidation, the complementary Phase II detoxification pathway that conjugates and excretes estrogen metabolites.

Omega-3

Omega-3 fatty acids support anti-inflammatory pathways that may complement DIM's effects in hormone-sensitive tissues.

Avoid Combining With

✕Oral contraceptives and hormone therapies (may theoretically alter efficacy — consult clinician)
✕Tamoxifen or aromatase inhibitors — concurrent use may interfere with therapy; discuss with oncologist
✕Heavy alcohol use (increases estrogen and may counteract metabolic goals)

Updated Invalid Date